docs: def handle_completion(self):
          """ Handle shell completion stuff.
          """
          # We don't want these in the help, so handle them explicitely
          if len(sys.argv) > 1 and sys.argv[1].startswith("--help-completion-"):
              handler = getattr(self, sys.argv[1][2:].replace('-', '_'), None)
              if handler:
                  print '\n'.join(sorted(handler()))
                  self.STD_LOG_LEVEL = logging.DEBUG
                  sys.exit(error.EX_OK)